查询词典 pulse amplitude modulation

Haloperidol but not sulpiride enhanced the paired-pulse inhibition elicited by antidromic -orthodromic paired-pulse stimulation, and reduced the paired-pulse fa- cilitation evoked by orthodromic paired-pulse stimulation.

氟哌啶醇加强逆-顺向双脉冲刺激诱发的双脉冲抑制，减弱顺向双脉冲刺激诱发的双脉冲易化。

MethodsWith vire pulse (40 cases) and common pulse(35 cases),sphygmograph was used to test pulse graph parameters of taut pulse (38 cases).

目的 探讨紧脉和弦脉两种脉象脉图是否存在差异，寻找两种脉象的客观诊断指标。

First, by taking into account not only interband effects but also intraband effects, such as carrier heating , spectral hole burning , two-photon absorption and ultrafast nonlinear refraction and the interaction of control pulse and signal pulse in SOA, the relationship between the performance of TOAD (including flatness of switching window, chirp of output signal and extinction ratio of the demultiplexed signal) and the parameters of input pulse (including the wavelength and power of control and signal pulse) are studied.

首先，在考虑到由于带内效应，诸如载流子热效应、谱烧孔效应、超快非线性折射效应和双光子吸收效应而导致得非线性增益压缩效应以及控制光和信号光相互作用情况下，研究了TOAD的各性能参数，包括开关窗口的平坦性、输出信号的啁啾特性、解复用信号的消光比特性等与输入控制光和信号光的波长及功率的关系，在此基础上对TOAD性能进行了优化。

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The results of study showed that there were many interference signals in discharge detection signal for the DC feeder cable, which determined by the special electric wiring of the cable. The results of laboratory simulation and field measurement showed that the main interferences involved discharge pulse generated by other equipments of the traction substation, white noise, rectifying pulse generated by the rectifying equipments, current pulse generated by the braking of the locomotive,stochastic pulse signal, and narrow-band signal generated by electric equipment.

研究结果表明直流馈出电缆的电气接线以及负荷特点决定了其放电监测中存在大量的干扰信号，干扰信号包括白噪声、交流侧放电脉冲、直流侧其它设备的放电脉冲、整流装置产生的整流脉冲、机车启动制动产生的电流脉冲、随机性干扰脉冲以及其它电子设备产生的周期性窄带信号。

The reason why secondary power model damage and high frequency relay disoperation usually has been explained, and the suggestions of protection and research are put forward. Systemic experimental study of waveform shape and frequency spectrum distribution of pulse electric field and pulse magnetic field is conducted with manufactured measuring systems. Waveform shape and frequency spectrum of pulse electric field and pulse magnetic field at different place including different impulse voltage and different gap are studied.

使用研制的测量系统对冲击电压放电产生的脉冲电场和脉冲磁场进行了系统的实验观测，得到了较为全面的不同电压、不同放电间隙和不同观测位置的脉冲电场和脉冲磁场的波形和频谱特征，研究了脉冲电场和脉冲磁场与冲击电压、间隙大小和高度的关系，研究了冲击电压放电产生的脉冲电场、脉冲磁场的分布特点等。

This article first described frequency changer's development process, proposed the PWM velocity modulation method's superiority, had pointed out the future PWM velocity modulation method's prospects for development, the spot will leave has studied the PWM velocity modulation method the significance.

本文首先描述了变频器的发展历程，提出了PWM调速方法的优势，指出了未来PWM调速方法的发展前景，点出了研究PWM调速方法的意义。

The modulation function can be calculated by Fourier transform, filtering and inverse Fourier transform. The value of modulation function in areas of local shadow and abrupt discontinuities is lower than that in other parts. So modulation is a useful threshold to determine the quality of carrier stripe.

针对这种情况，本论文提出了通过傅立叶变换得到变形条纹图像的调制度函数，设置调制度函数阈值判断条纹质量的优劣，低于阈值的部分认为是不连续、阴影或陡峭区域，使用模板覆盖。

In the thesis, the space vector modulation of MC can be synthesized by fictitious rectifier and fictitious inverter. Two space vector control strategies of MC, which combines output line voltage space vector modulation and input phase current space vector modulation, is adopted.

本文采用输出线电压空间矢量调制和输入相电流空间矢量调制相结合的双空间矢量调制策略，对虚拟整流器和虚拟逆变器的空间矢量分别进行了分析，然后将二者综合得到矩阵变换器的调制方法。

Multicarrier modulation in data transmission is discussed in the fourth chapter. The performance of MCM and single tone modulation over twisted pairs is compared. Discrete multitone modulation is used in ADSL system. A new variable constellation TCM method is proposed, It can adapt to the subchannel capacity automatically. The simulation results prove that this method is quite effective.

第四章讨论了多载波调制技术在数据传输中的应用，针对市话信道的具体传输环境，比较了单载波调制与多载波调制的性能；针对ADSL传输的目标，采用离散多频音DMT技术，独立提出一种新的星座图变化的格状码方案VCTCM，能动态地适应不同子信道的传输能力，给出的计算机仿真结果表明该方案有较好的效果。

Putt your way through 36 fun-filled holes of minigolf on 3D designed courses with elevated greens, bunkers, bridges and water hazards, among other crazy obstacles.

您的推杆方式，通过36个有趣的填孔迷你的三维设计的课程，以提升绿党，掩体，桥梁和水的危害，除其他疯狂的障碍。

Some participles can be used either as attributes or as predicatives.

有些分词既可当定语用，也可当表语用。